Page 1 Instructions for Use Installation and Servicing Models covered by these instructions 30ci plus (47-047-22) To be left with the user Fanned Flue Combination Boiler...
Page 3 Guarantee Registration Thank you for installing a new Glow-worm appliance in your home. Glow-worm appliances' are manufactured to the very highest standard so we are pleased to offer our customers’ a Comprehensive Guarantee. This product is guaranteed for 24 months from the date of installation or 30 months from the date of manufacture, whichever is the shorter, for parts.
Page 4 Hepworth Heating Ltd., Nottingham Road, Belper, Derbyshire. DE56 1JT Glow-worm IE Ireland: Tel. 00 353 (0)16305757 Fax. 00 353 (0)16305724 C & F Quadrant Ltd., Quadrant House, Chapelizod, Dublin 20 Technical Advice Line: Tel. 00 44 (0)1773 828300 General and Sales enquiries: Tel.
Page 5: Table Of Contents
Maintenance and Servicing Controls and Lighting Programmer instructions for use INSTALLATION Technical Data INSTRUCTIONS General Information Heating System Design Domestic Hot Water System Design Boiler Schematic Boiler Location, Flue and Ventilation Fixing Jig Boiler Preparation and System Connections Boiler Installation Horizontal Telescopic Rear Flue Installation Horizontal Telescopic Top Flue...
Page 6: Gas Safety (Installation And Use) Regulations
Spare Parts Important Information Gas safety (Installation and use) Regulations In your interests and that of gas safety, it is the law that ALL gas appliances are installed and serviced by a competent person in accordance with the regulations. Testing and Certification This boiler is tested and certificated for safety and performance.
Page 7: Electrical Supply
Insulation pads/ceramic fibre These can cause irritation to skin, eyes and the respiratory tract. If you have a history of skin complaint you may be susceptible to irritation. High dust levels are usual only if the material is broken. Normal handling should not cause discomfort, but follow normal good hygiene and wash your hands before eating, drinking or going to the lavatory.
Page 8: Heating System Controls
During the appliance installation it will be necessary to employ caution and assistance whilst lifting as the appliance exceeds the recommended weight for a one man lift. In certain situations it may be required to use a mechanical handling aid. Take care to avoid trip hazards, slippery or wet surfaces.
Page 9 drained to avoid the risk of freezing. Make sure that, if fitted, the immersion heater in the cylinder is switched off. Diagram 1 If in doubt, consult your servicing company.
Page 10: Appliance Introduction
Appliance Introduction The 30ci plus boiler is a wall mounted modulating combination boiler with electronic ignition providing central heating and instantaneous hot water. The boilers are equipped with a litre domestic hot water storage vessel that ensures maximum hot water temperature stability during domestic demand.
Page 11: Flue Options
This boiler may be installed in any room, although particular attention is drawn to the installation of a boiler in a room containing a bath or shower where reference must be made to the relevant requirements. Any electrical switch or boiler control utilising mains electricity should be placed so that it cannot be touched by a person using the bath or shower.
Page 12: Frost Protection
The boiler will not operate without an electrical supply. Normal operation of the boiler should resume when the electrical supply is restored. Reset any central heating system controls, to resume normal operation. If the boiler does not resume normal operation turn the mains reset switch off and on. If the boiler does not resume normal operation it is advisable to consult your installation/servicing company.
Page 13 Do not use reconditioned or copy parts that have not been clearly authorised by Hepworth Heating Ltd. If a part is required contact Glow-worm Service using the telephone number on the inside front cover of this booklet.
Page 14: Controls And Lighting
Controls and lighting Central heating adjustment The temperature of the water in the central heating circuit can be set between, approx. 38°C and 87°C. It is supplied, factory set to 38°C - 73°C Domestic hot water The temperature can be adjusted from approx. 38°C up to 65°C. Diagram 2 1.
Page 15 ● The gas service cock is open. Switch ON (I) The running lamp will illuminate green. 2. Stop the boiler: ● Switch to OFF (0) the electrical supply is OFF. 3. Domestic hot water temperature adjustment: ● Press button Hand once, domestic hot water only is displayed and the current temperature setting flashes.
Page 16 4. Central heating temperature adjustment: ● Press button Hand twice, domestic hot water only is displayed and the current temperature setting flashes. ● Press - or + to set a temperature between 38°c to 87°c. ● The display will default to normal after 5 seconds if no buttons are pressed. 5.
Page 17 ● Reset the boiler: Switch the boiler OFF (0), wait for five seconds. Switch the boiler ON (I), the boiler is reset. If the fault continues call your Installation/Servicing company or Glow-worm Service using the telephone number on the inside front cover of this literature.
Page 18 8. Installation filling: ● If the boiler loses water: The green running light will change to a red flashing light and the display will flash the letter ‘F’ with the low system water pressure fault and the current system pressure. ●...
Page 19: Programmer Instructions For Use
The pressure must be reduced to 1.0 bar by opening the drain valve, see diagram 1. If the fault continues call your Installation/Servicing company or Glow-worm Service using the telephone number on the inside front cover of this literature. Programmer instructions for use Setting the time.
Page 20: Setting The Programmer
Setting the programmer. Press button Hand six times,PROG is displayed. press “+” and ON, PROG and the calendar will be displayed along with 0 to 24 hour ON/OFF settings and 1 to 7 days of the week. Set ON/OFF times at 30min intervals for each day 1 to 7 of the week. A flashing square is displayed below the current day of the week selected, Press - or + to select the day 1 to 7 to be set.
Page 21: Technical Data
Press Hand, PROG and calendar is displayed, press + to select the next day or - to select the previous day to be set, continue setting the remaining days as required. The display will default to normal after 60 seconds if no buttons are pressed. 1 Technical Data 30ci plus Heating...
Page 22 Heat input (max) NET Q 32,6 kW 111,231 BTU/H Heat input (min) NET Q 12,5 kW 42,650 BTU/H Heat output (max) NET P 29,6 kW 100,995 BTU/H Heat output (min) NET P 10,3 kW 35,144 BTU/H Efficiency - Sedbuk D 79,6% Maximum heating temperature 87°C...
Page 23 Maximum hot water temperature 65°C Minimum hot water temperature 38°C Specific flow rate (for 35°C temp rise) 12,1 litres/min. Threshold flow rate 1,7 litres/min. Maximum supply pressure 10 bar Minimum supply pressure 0,5 bar Combustion Products outlet diameter 60 mm Fresh air inlet diameter 100 mm Combustion products values...
Page 24 Butane Gas (G30) Ø Burner injector 0,73 mm Inlet pressure 29 mbar Maxi. Burner pressure 25,5 mbar Mini. Burner pressure 4,7 mbar Gas rate maximum 2,53 kg/h Propane Gas (G31) Ø Burner injector 0,73 mm Inlet pressure 29 mbar Maxi. Burner pressure 32,5 mbar Mini.
Page 26: General Information
2 General Information IMPORTANT NOTICE. Where no British Standards exists, materials and equipment should be fit for their purpose and of suitable quality and workmanship. Refer to Manual Handling Operations, 1992 regulations. The installation of this boiler must be carried out by a competent person in accordance with the rules in force in the countries of destination.
Page 27: Gas Supply
In I.E the installation must be carried out by a competent person and installed in accordance with the current edition of I.S. 813 “Domestic Gas Installations”, the current Building Regulations and reference should be made to the current ETCI rules for electrical installation. In GB the following Codes of Practice apply: BS4814, BS5440 Part 1 and 2, BS5449, BS5546 Part 1, BS6700, BS6798, BS6891 and BS7074 Part 1 and 2, BS7478, BS7593, BS7671.
Page 28: Heating System Design
3 Heating System Design • The 30ci plus is for use with sealed central heating systems. • Heating surfaces may consist of radiators, convectors or fan assisted convectors.
Page 29 • The piping system shall be routed so as to avoid any air pockets and facilitate permanent venting of the installation. Bleed fittings must be provided at every high point of the system and on all radiators. • The total volume of water permitted for the heating system depends, amongst other things, on the static head in the cold condition.
Page 30: Filling The System
3.2. TABLE 1. FLOW RATE Model Minimum flow rate 30ci plus 21.26 litres per minute This is equal to 20°C differential at maximum heat input 3.2 Filling the system A filling device is fitted to the boiler to initially fill the system and replace water lost during...
Page 31: Boiler Schematic
5 Boiler Schematic Diagram 5.1...
Page 33: Boiler Location, Flue And Ventilation
6 Boiler Location, Flue and Ventilation 6.1 Boiler Location The recommended clearances are shown in diagram 6.1. Diagram 6.1...
Page 34 NOTE:...
Page 35 The boiler must be mounted on a flat wall which is sufficiently robust to take its weight when full. If in doubt, expert advice should be obtained. The minimum acceptable spacings from the terminal to obstructions and ventilation openings are shown in diagram 6.2.
Page 37 The boiler must be installed so that the terminal is exposed to the external air. 6.2 Terminal guard, see diagram 6.3. Diagram 6.3 A terminal guard is required if persons could come into contact with the terminal or the terminal could be subject to damage.
Page 38: Fixing Jig
Vertical flue pack. Twin flue pack. Extensions, 90° and 45° bends. For detailed information refer to flue options guide. This is available from your nearest stockist. 6.4 Cupboard or compartment ventilation The boiler can be fitted in a cupboard or compartment without the need for permanent ventilation.
Page 39 - 5 × 22mm fibre washers (shown as “w” in diagram) Fittings Pack, inclusive - Wall template - Discharge Safety valve connection incl. Knurled nut and O ring seal 15mm compression fitting - Discharge Safety Valve Instruction sheet - 230V External connection instruction sheet - Filling loop extension knob - 230V External controls connection plug Bag containing :...
Page 41: Boiler Preparation And System Connections
8 Boiler Preparation and System Connections 8.1 Cutting the flue hole ● Remove the wall template, follow the instructions given on the wall template. ● Position the wall template, taking due regard of the minimum clearances for the selected flue application, see diagram 8.1.
Page 43 IMPORTANT: When cutting the flue hole and when extending the flue centre line to a side wall, remember that the flue system must have a fall of about 35mm per metre of flue downward towards the terminal. There MUST never be a downward incline towards the boiler.
Page 44: Boiler Installation
In your interests and that of gas safety, it is the law that ALL gas appliances are installed and serviced by a competent person in accordance with the above regulations. ● The whole of the gas installation, including the meter, should be inpected, tested for soundness and purged in accordance with the current issue of BS6891 and in IE the current edition of I.S.813 “Domestic Gas Installations”.
Page 45 With regards to the manual handling operations, 1992 regulations, the following operation exceeds the recommended weight for one man lift. • Lift the boiler up and engage boiler onto the hanging bracket, refer to diagram 7.1. • Fit the boiler jig connection pipes and washers between the boiler and isolating valves, see diagram 7.1.
Page 46 Diagram 9.2...
Page 47 Diagram 9.3 9.3 Heating safety valve (3 bar RED) and domestic safety valve (10 bar BLUE) discharge, refer to diagrams 9.4.
Page 48 Diagram 9.4 Two short discharge pipes and washers are supplied in the fittings pack, fit these to the heating safety valve 3 bar and the domestic water safety valve 10 bar. The discharge must be extended using pipe not less than 15mm. od. to discharge in a visible position outside the building, facing downward preferably over a drain.
Page 49: Horizontal Telescopic Rear Flue Installation
The pipes must have a continuous fall and be routed to a position so that any discharge of water, possibly boiling or steam, cannot create any danger to persons, damage to property or external electrical components and wiring. Tighten all pipe connection joints. 9.4 Filling loop extension The filling loop extension knob is supplied in the discharge safety valve pipe connection pack.
Page 50 Suitable for installations that require a flue length “L” 193 - 510mm. For flue lengths less than 328mm the duct will need to be cut, see diagram 10.2. Diagram 10.2...
Page 51 To make a neat finish to the flue outlet, a flue collar kit, part No. 900850, with instructions, is available, see diagram 10.3. Diagram 10.3...
Page 52 Flue and Air Duct preparation Extend the telescopic flue to the required length, making sure that the minimum overlap is no less than 25mm, see diagram 10.2, and that the flue terminal projects 15mm minimum beyond the wall face. Carefully drill though air duct pilot hole and secure with self tapping screw provided in fittings pack.
Page 53 10.3 Fan Removal, refer to diagram 10.5 Diagram 10.5...
Page 54 ● Disconnect power supply leads and earth lead from fan. ● Unscrew and remove the two fan retaining bolts. ● Ease the fan down and forwards to remove. 10.4 Flue Connection, refer to diagram 10.6 Diagram 10.6...
Page 55 Pull the flue assembly into the spigot bayonet connection and twist anti-clockwise to lock. 10.5 Flue Hood Outlet Restrictor, refer to diagram 10.8 Secure restrictor, supplied with flue pack, to the flue hood as shown in diagram 10.8. 10.6 Fan Securing, refer to diagram 10.5 Ensure fan outlet seal is in position, see diagram 10.7, then fit the fan into the flue duct and...
Page 56 Diagram 10.8...
Page 57 Replace chamber cover and secure with screws previously removed. 11 Horizontal Telescopic Top Flue Installation The Horizontal Telescopic Top Flue, Kit No. A2004500 Suitable for installations that require a flue length “L” from 430 minimum to 660 maximum. If longer flueing is required extensions and bends are available, see note below. If the flue length, see diagram 11.2.
Page 58: Horizontal Telescopic Top Flue
11.1 Horizontal Telescopic Top Flue Kit of parts, refer to diagram 11.1. Diagram 11.1 Telescopic Top flue kit...
Page 59 11.2 Horizontal telescopic flue system...
Page 60 Rear and side flue lengths and dimensions, see diagram 11.2. Diagram 11.2...
Page 62 11.3 Installation of telescopic flue assembly ● Remove the elbow (D) and the telescopic flue assembly (A) from the flue kit. ● Refer to Step 1. diagram 11.3. Fit the telescopic flue assembly (A) into the prepared hole in the wall. Position the elbow (D) on the boiler, do not secure. Position the telescopic flue assembly (A) as it would be fitted.
Page 64: Horizontal Top Flue Installation
12 Horizontal Top Flue Installation 12a.1 The Horizontal Top flue - kit 86285H Suitable for installations that require a max. flue length “L” of 740mm. If a shorter flue length is required, the flue can be cut to a min. length “L” of 260mm rear or 300mm side.
Page 65 Diagram 12a.2...
Page 67 12a.3 Flue cutting, refer to diagram 12a.3. Diagram 12a.3...
Page 69 IMPORTANT: Do not leave any burrs or sharp edges on the cut ends of the pipes. 12a.4 Installation of horizontal top flue assembly IMPORTANT: If the flue has been cut, ensure that there are no burrs that could damage the ‘O’ ring. ●...
Page 70: Electrical Connection
13 Electrical Connection WARNING: This appliance must be earthed. This appliance must be wired in accordance with these instructions. Any fault arising from incorrect wiring cannot be put right under the terms of the Glow worm guarantee. All system components must be of an approved type. Electrical components have been tested to meet the equivalent requirements of the BEAB.
Page 71: Mains Cable
13.1 Mains Cable IMPORTANT: If a replacement supply cable is required it must be purchased. Part No. S1008600. 13.2 Voltage Free External Controls WARNING: UNDER NO CIRCUMSTANCES MUST ANY MAINS VOLTAGE BE APPLIED TO ANY OF THE TERMINALS ON THE VOLTAGE FREE HEATING CONTROLS CONNECTION TERMINAL. This boiler will operate continuously on heating, as supplied, if the wire link (E), fitted between the two terminals of the heating controls connection, is left in place, see diagram...
Page 73 External heating controls e.g. Room thermostat, should be fitted in accordance with the rules in force and as shown in the example, diagram 13.2. Diagram 13.2...
Page 74 13.3 Mains Voltage External Controls...
Page 75 WARNING: UNDER NO CIRCUMSTANCES MUST ANY MAINS VOLTAGE BE APPLIED TO ANY OF THE TERMINALS ON THE VOLTAGE FREE HEATING CONTROLS CONNECTION TERMINAL. When mains voltage external controls are used, remove the MAINS VOLTAGE HEATING CONTROLS CONNECTION PLUG from the fittings pack and install on the control interface PCB as follows.
Page 76 Route the external heating controls cable (not supplied) and connect to the plug, see diagram 13.3. Insert plug onto controls interface PCB, see diagram 13.3. Close the fascia panel and remove the screws to open the rear cover of control panel, see diagram 13.1.
Page 77 Diagram 13.5...
Page 79: Commissioning
External controls should be fitted in accordance with the rules in force. 13.4 Electrical Connections - Testing Carry out preliminary electrical system checks as below: 1. Test insulation resistance to earth of mains cables. 2. Test the earth continuity and short circuit of cables. 3.
Page 80 Filling the system 1 to 8 Make sure that: ● The boiler is connected to the electrical supply. ● The gas service cock is open. Switch OFF (0)
Page 81 ● Open the three water isolating valves. NOTE: Isolating valves are shown in the: OFF position ● Undo cap on automatic air vent on top of pump and leave undone. ● Turn the switch ON (I) ● Open the tap on the filling device ●...
Page 82 NOTE: On initial fill there may be a small discharge of water from the Reduced Pressure Zone valve ● Bleed each radiator to remove air, ensure all bleed screws are re-tightened. ● If necessary repressurise the system, refer to procedure 4 ●...
Page 83 ● Ensure the display indicates a system pressure of 1.0 bar adjust if necessary. ● Open various hot water taps to bleed system...
Page 84 Air in pipes IMPORTANT: A central heating system can not operate correctly unless it is filled with water and air bled from the system. If these conditions are not met the system may be noisy. Bleed the air in the radiators and adjust the pressure if system requires. If the system requires filling to often this may be due to minor leaks or corrosion in the system.
Page 85: Instruct The User
• Restart boiler and operate until a maximum temperature is reached. If necessary, refer to page 30 to adjust the bypass. Shut down boiler and vent heating system. If necessary, top up heating system and make sure that a pressure of at least 1 bar is indicated when system is COLD. Flush the domestic hot water system by opening the hot water taps for several minutes.
Page 86: Boiler Settings
Bypass The boiler has a built-in bypass, see diagram 15.1. Diagram 15.1 The boiler is supplied with the bypass open half a turn. It should not be necessary to adjust the bypass, but if required ensure that under no circumstances does the flow rate fall below the figures specified, refer to Table 1.
Page 87 ● When 1 flashing, press on if you want to adjust this menu. ● Use the heating + and - button to set the desired heating output in kW. NOTE: Adjustment of the heating output does not affect the hot water output. For kW to Btu/hr conversion refer to table : Btu/hr Btu/hr...
Page 88 ● Select a parameter between 0 and 10 according to the following table. Flue parameters following maxi. flue length : Setting Horizontal Horizontal Verticale Horizontal TOP Flue REAR Flue TOP Flue TWIN Flue 0,3 m 0,3 m 1,7 m 0,6 m 0,5 m 1,7 m 3,9 m...
Page 89 1,6 m 1,3 m 3,8 m 12,6 m 1,9 m 1,5 m 4,5 m 15,5 m 2,2 m 5,2 m 18,4 m 2,5 m 5,9 m 21,3 m 2,9 m 6,6 m 24,2 m 3,2 m 7,3 m 27,1 m 3,5 m 30 m Parameter 3 : Setting the minimum heating temperature...
Page 90: Changing Gas Type
16 Changing Gas Type Should it be necessary to change the gas type, a conversion kit with instructions will be required. This modification must only be carried out by a suitably qualified engineer. Conversion natural Gas (G20) to G30/G31 Part No. A2011900. Adjusting the step pressure.
Page 91: Routine Cleaning And Inspection
This setting is used only to reduce burner pressure at maximum setting, if the network pressure is constantly higher than normal pressure. Settings:- 12.2 mbar Natural gas G20 23.2 mbar Butane G30 29.8 mbar Propane G31 Lock the boiler at maximum burner pressure as follows. Press the mode button for about 10 seconds, Use + or - to display code ‘96’, Press the mode button to confirm, The display idicates line 1 in the data menu, The figure on the left is the data, the one on the right is the setting for the data.
Page 92 Rear Flue: To obtain a products of combustion reading, unscrew the sampling point cap on the flue spigot, located between the boiler and the wall, see diagram 17.1. Connect the analyser tube onto sampling point. Refer to the combustion product values in Section 1 Technical Data.
Page 93: Front Panel
● On completion check all gas-carrying parts for soundness with leak detection fluid. ● Remove boiler casing as follows: Diagram 17.2 17.3 Front panel ● Unscrew and remove the two retaining screws from the bottom of the front panel. ● Remove front panel by lifting up and forward. 17.4 Control panel ●...
Page 94 Diagram 17.3 17.6 Side panels (for ease of access if available), refer to diagram 17.4 Diagram 17.4...
Page 95 ● Unscrew and remove the two retaining screws from front of each side panel. ● Left hand side panel only disconnect the control panel retaining strap at the control panel. ● Unhook each panel from the front retaining tabs. ● Pull each panel forward from the rear retaining tabs to remove. 17.7 Combustion chamber cover...
Page 96 ● Unscrew and remove the two screws securing combustion chamber cover to combustion chamber, see diagram 17.5. ● Remove combustion chamber cover from boiler. Diagram 17.5 17.8 Spark and Sense Gaps ● Check that the spark and sense gaps as shown in diagram 17.6.
Page 97 17.9 Burner, refer to diagram 17.7 Diagram 17.7...
Page 98 ● Unscrew and remove the two burner retaining screws. ● Remove burner from boiler by easing it forward off the two burner guides, taking care not to damage the insulation. ● Clean burner by washing in soapy water. Dry thoroughly before refitting. NOTE: To gain access to injectors for removal and cleaning, refer to Section,...
Page 99 ● Disconnect power supply leads and earth lead from fan. ● Disconnect the electrical plug from the fan sensor. ● Unscrew and remove the two fan retaining bolts. ● Ease the fan down and forwards to remove. 17.11 Heat exchanger, refer to diagram 17.9 Diagram 17.9...
Page 100 ● Remove air pressure switch sensing tube from the side of the flue hood. ● Unscrew and remove the two retaining screws from front of each side panel. ● Unhook each panel from the front retaining tabs and ease outwards. ●...
Page 101 17.12 Domestic water inlet filter, refer to diagram 17.10 Diagram 17.10 If the water flow rate through the appliance has reduced it may be necessary to clean or replace the domestic water inlet filter. ● Pull out slotted clip securing the filter in its housing, remove the filter to clean or renew if necessary.
Page 102: Fault Finding
Remove the filter retaining clip and filter clean or renew if necessary. Push the filter fully into its housing, ensuring the correct orientation. The flat and hole in the filter as shown. Secure with retaining clip. 17.14 Sealed Chamber Cover - Seal Check Check the condition of the seal, replace as required.
Page 103 ● The fuse on the PCB is intact. WARNING: Always isolate the boiler from the electrical supply before carrying out any electrical replacement work. Always check for gas soundness after any service work. Should there be any doubt about the voltage supply to any of the components, it is possible to carry out a simple electrical test to ensure all is operational in that area.
Page 104 TYPE OF FAULT CHECK No display on control panel • 230V supply • PCB fuse • Connection between PCBs No domestic hot water • Loose connections on control board (PCB) No central heating (warning light of • Connections on air pressure fault code displayed on control switch (electrical or tubes) panel)
Page 105 • Shortage of air or gas • Faulty temperature sensor • Overheating COMPONENT TESTING DATA COMPONENT NORMAL MEASURE CHECK Gas control valve Under demand during If 0 Volt: the gas control Resistance of coil ignition sparks: 12Vdc valve is not faulty. 116Ω...
Page 106 (1, 2 and 3 marked About 25V ac to 35V ac on the motor). between 1 and 2. Thrust action of the Unfasten the clip (YES, If electrical supply is OK. motor. (remove gas no risk of water leak), control valve before pull out the motor and testing) leave it plugged in.
Page 107 ‘11’ and ‘phone’ and ‘F’ and No reception by the main board ‘flashing red LED’ (MMI Lead) ‘12’ and ‘phone’ and ‘F’ and User interface or distant control ‘flashing red LED’ panel fault ‘13’ and ‘phone’ and ‘F’ and Main board fault ‘flashing red LED’...
Page 108 FAULT: NO HOT WATER, BUT THE HEATING IS WORKING FAULT: THE BURNER LIGHTS BUT THEN GOES OUT. THERE IS NO FLAME DETECTED.
Page 109 FAULT: THE BURNER LIGHTS, THEN GOES OUT. FAULT: THE BURNER DOES NOT LIGHT AT ALL, BUT THERE IS AN IGNITION SPARK.
Page 110 FAULT: THE ROOM TEMPERATURE IS INADEQUATE AND RADIATORS ARE LUKE-WARM. FAULT: THE WATER AT THE TAPS IS LUKE-WARM. FAULT: THE FAN DOES NOT START. FAULT: THE FAN RUNS BUT THERE ARE NO SPARKS. ● CHECK CONTINUITY OF IGNITION (ELECTRODES AND LEADS) ●...
Page 111: Wiring Diagram
19 Wiring Diagram...
Page 113: Replacement Of Parts
20 Replacement of Parts To Drain the central heating circuit ● Open drain valve fitted at the lowest point in the system. ● Allow air into the system by opening a radiator bleed screw or the boilers drain valve (f). To Drain the Domestic hot water circuit ●...
Page 114 IMPORTANT INFORMATION WARNING: Before commencing the replacement of any component, isolate appliance from electrical supply and turn off gas at service cock. Replacement of parts must be carried out by a competent person. When replacing components it may be necessary to renew sealing washers, gaskets and ‘O’ rings.
Page 115: Air Pressure Switch
20.2 Fan, refer to Section 17.10 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Remove the sealed chamber cover, refer to Section 17.5. ● Remove the fan, refer to Section 17.10.
Page 116 • Remove the front panel, refer to Section 17.3. • Remove the sealed chamber cover, refer to Section 17.5. • Locate air pressure switch situated at the top right hand side, see diagram 20.3. Diagram 20.3 • Remove air pressure switch tube from sensing probe on flue hood. NOTE: Do not fit tube until the air pressure switch is in position.
Page 117 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Clean or replace the water inlet filter, refer to section 17.12.
Page 118 20.8 Burner, refer to Section 17.9. Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Remove the sealed chamber cover, refer to Section 17.5.
Page 119 20.10 Burner injector assembly, refer to diagram 20.5 and 20.6. Diagram 20.6 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4.
Page 120: Overheat Thermostat
Take care not to damage the insulation. ● When refitting burner injector assembly ensure the gas connection locates correctly through the grommet. NOTE: Make sure that injector size, marked on each injector, is the same as that given in ‘Section 1 Technical Data’...
Page 121: Ignition Electrode
20.12 Ignition electrode Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Remove the sealed chamber cover, refer to Section 17.5.
Page 122 ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Remove the sealed chamber cover, refer to Section 17.5. ● Remove the combustion chamber cover, refer to Section 17.7. ● Remove burner, refer to Section 17.9.
Page 123 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Remove the sealed chamber cover, refer to Section 17.5. ● Remove the combustion chamber cover, refer to Section 17.7. ●...
Page 124 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Gain access to rear of control panel. ● Undo and remove the two front retaining screws. ●...
Page 125 Before starting refer to the front of Section 20 Important information. ● Unclip control panel user interface and hinge forward. Do not strain the cables. ● Disconnect the electrical connections from the user inter face board. ● Remove the user inter face board retaining screw. ●...
Page 126 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Drain down central heating water circuit of the boiler only, refer to relevant part of diagram 20.1.
Page 127 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Drain down the hot water circuit only, refer to relevant part of diagram 20.1.
Page 128 20.23 Boiler drain point, refer to diagram 20.13. Diagram 20.13 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Drain down the boiler only, refer to relevant part of diagram Pull out slotted metal clip securing boiler drain valve into housing, remove boiler drain valve.
Page 129 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. Drain down the hot water circuit, refer to relevant part of Section 20.1.
Page 130 ● Remove domestic water inlet filter housing. ● Remove electrical connections from water flow sensor. ● Pull off slotted metal clip and remove water flow sensor. 20.25 System water pressure sensor, refer to diagram 20.15. Diagram 20.15 Before starting refer to the front of Section 20 Important information.
Page 131 ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. Drain down the boiler, refer to relevant part of Section 20.1. Pull out slotted metal clip, ease out bypass valve from bypass valve housing. 20.27 Automatic air vent, refer to diagram 20.16.
Page 132 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Disconnect gas supply pipe union nuts at the gas control valve. ●...
Page 133 ● Remove gas control valve retaining clip from the underside of gas control valve. ● Remove the wire restraining clip from underside of gas control valve ● Ease gas control valve forwards and disconnect electrical connections to gas control valve. NOTE: The washers must be kept for use on reassembly.
Page 134 ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Remove the gas control valve, refer to Section 20.28. ● Disconnect the electrical connection from stepper motor. ● Remove the two screws securing stepper motor to the gas control valve. ●...
Page 135 20.31 Three-way valve head, refer to diagram 20.20. Diagram 20.20 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● For ease of access remove the right hand side panel, refer to Section 17.6.
Page 136 2) It is not necessary to drain boiler to carry out this work. 20.32 Three-way valve actuator, refer to diagram 20.21. Diagram 20.21 Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3.
Page 137 Diagram 20.23...
Page 138 Before starting refer to the front of Section 20 Important information. ● For ease of access remove the left hand side panel, refer to Section 17.6. ● Disconnect electrical connections. ● Remove ignition unit securing screw. ● Pull upwards to release and remove the ignition unit from the retaining slot.
Page 139 20.34 Domestic hot water plate to plate heat exchanger Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Lower the control panel, refer to Section 17.4. ● Drain down the boiler and hot water circuit, refer to relevant parts of diagram 20.1.
Page 140 ● Drain down the hot water circuit only, refer to relevant parts of diagram 20.1. ● Undo discharge pipe union nut. ● Pull out slotted metal clip from valve body and remove valve. 20.36 Micro accumulator vessel thermistor, refer to diagram 20.25. Diagram 20.25 Before starting refer to the front of Section 20...
Page 141 Before starting refer to the front of Section 20 Important information. For this operation the boiler must be removed from the wall. IMPORTANT: • With regards to the manual handling operations, 1992 regulations, the following operation exceeds the recommended weight for one man lift.
Page 142 ● Remove the front panel, refer to Section 17.3. ● Drain down the boiler and hot water, refer to relevant parts of diagram 20.1. NOTE: It is not necessary to drain down entire heating system to carry out this work. ●...
Page 144 Before starting refer to the front of Section 20 Important information. ● Drain hot water circuit only. ● Remove the micro accumulatior vessel, refer to Section 20.37. ● Lower the control panel, refer to Section 17.4. ● Gain access to rear of control panel, see diagram 20.9.
Page 146 Renewal of the expansion vessel requires the boiler to be removed from the wall. As an alternative, a separate expansion vessel of the same specification may be connected as close as possible to the boiler, leaving the original in position, refer to the installation instructions. Replacing the expansion vessel Before starting refer to the front of Section 20...
Page 147: Spare Parts
Before starting refer to the front of Section 20 Important information. ● Remove the front panel, refer to Section 17.3. ● Remove the sealed chamber cover, refer to Section 17.5. ● Remove the old seal, thoroughly clean the casing. Fit the new seal, it is supplied to the correct length.
Page 148 When ordering spare parts, quote the part number and description, stating the appliance model number and serial number from the data label. Because of our constant endeavour for improvement details may vary slightly from those in the instructions.

This manual is also suitable for:

47-047-22

Glow-worm 30ci plus Instructions For Use Installation And Servicing

Quick Links

Need help?

Questions and answers

Related Manuals for Glow-worm 30ci plus

Summary of Contents for Glow-worm 30ci plus

This manual is also suitable for: